M-Zed-5, or Outpost MZ-5, was an outpost in Klingon space, in the Beta Quadrant. (DIS: "An Obol for Charon")

In 2257, its' location was labeled on the star chart showing the trajectory of Lieutenant Spock's shuttle. (DIS: "An Obol for Charon")

Korris claimed that he booked accommodations on the freighter Batris with his two companions for this outpost in 2364. In his fabrication, Korris claimed that in the passage to this outpost they were attacked by a Ferengi cruiser. (TNG: "Heart of Glory")

According to Star Trek: Star Charts (p. 63) and Stellar Cartography: The Starfleet Reference Library ("Federation Historical Highlights, 2161-2385"), Outpost MZ-5 was located in the Beta Quadrant.
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